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anhydride

(Encyclopedia)anhydride ănhīˈdrīd, –drĭd [key] [Gr.,=without water], chemical compound formed by removing water, H2O, from another compound; the anhydride can also react with water to form the original compo...

phenylketonuria

(Encyclopedia)phenylketonuria fĕnˌəlkētˌəno͝orˈēə [key] (PKU), inherited metabolic disorder caused by a deficiency in a specific enzyme (phenylalanine hydroxylase). The absence of this enzyme, a recessive...

casein

(Encyclopedia)casein kāˈsēn [key], well-defined group of proteins found in milk, constituting about 80% of the proteins in cow's milk, but only 40% in human milk. Casein is a remarkably efficient nutrient, suppl...

mudskipper

(Encyclopedia)mudskipper, name for fish of several genera in the subfamily Oxudercinae of the goby family, found in coastal waters of the Indian and Pacific oceans and on the Atlantic coast of Africa. The typically...

shoring

(Encyclopedia)shoring, placing of props or braces, called shores, against or beneath a structure for support. Shoring is often used to stabilize a building when it is to undergo structural modification or repair. C...

Hamilcar Barca

(Encyclopedia)Hamilcar Barca, d. 229 or 228 b.c., Carthaginian general. He was assigned the command in Sicily in 247 in the First Punic War (see Punic Wars). From mountain bases near Palermo he made repeated raids ...

Healey, Denis Winston Healey, Baron

(Encyclopedia)Healey, Denis Winston Healey, Baron, 1917–2015, British political leader, grad. Oxford (1940). He served in the British army (1940–45), then joined the Labour party and began a long career in parl...

Space Force, United States

(Encyclopedia)Space Force, United States (USSF), military force that forms a separate service within the U.S. Dept. of the Air Force, est. Dec. 20, 2019, by act of Congress. The head of the Space Force is the Chief...

tungsten

(Encyclopedia)tungsten tŭngˈstən [key] [Swed.,=heavy stone], metallic chemical element; symbol W; at. no. 74; at. wt. 183.84; m.p. about 3,410℃; b.p. 5,660℃; sp. gr. 19.3 at 20℃; valence +2, +3, +4, +5, or...

autotroph

(Encyclopedia)autotroph ôtˈətrōfˌ [key], in biology, an organism capable of synthesizing its own organic substances from inorganic compounds. Autotrophs produce their own sugars, lipids, and amino acids using ...